Direct Mail Auto Letter

I need an 8.5x14 4color, one-sided direct mail piece for a car dealership. I will provide the copy. I do not have the cars or the art that would go on the piece. There needs to be a check portion at the top with an area for an address to show through an envelope for mailing purposes. This letter would be mailed out to people that need financing for a car. I provided a sample of an example that is similar to what I am looking for. Thanks.